2048 : NPC is set up as a template and won't spawn until called by a template maker.

4096 : NPC uses alternate collision (player avoidance).

8192 : NPC doesn't drop weapons upon death.

16384 : NPC won't budge from the player's pushing.

Inputs

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Default NPC:

SetRelationship <targetname> <disposition> <rank (integer)>
Changes whether this NPC likes or dislikes certain others. Used like the ai_relationship entity, with this NPC as the subject. Values for disposition are:

D_HT : Hate the target.D_FR : Fear the target.D_LI : Treat the target as a friend.D_NU : Treat the target as a neutral party.

StartScriptingStopScripting
Enter/exit scripting state, where NPCs ignore a variety of stimulus that would make them break out of their scripts. They ignore danger sounds, ignore the player's Use, don't speak idly or respond to other NPC's idle speech, and so on.

AddOutput <key> <value> OR <output name> <entity>: <input>: <parameter>: <delay>: <fire only once?>
Evaluates a keyvalue/output on this entity. Not guaranteed to work and can cause problems so handle with care.